2018 MERCEDES-BENZ C-CLASS COUPE engine coolant

Display messages
Possible causes/consequences and 0050
0050Solutions
Cannot start engine See
Owner's Manual *T
hecharge leve l of the 48 V battery is too lo w.You can no lon gerst art the engine. 0007
Switch off electrical consumers that are not required. 0007
Connect a suitable charge r appro vedby Mercedes-Benz with suf ficient charge output tothe jump-s tart connec‐
tion point of the12 V battery (0013 page 423).
The 48 V battery is charge d via thevo ltage con verter in theve hicle.
Motor can be started again *T
he 48 V battery has been charge d automatically via thevo ltage con verter. 0007
Start the engine and drive theve hicle for a while tocharge the12 V battery and the 48 V batter y.
00AC *T
hefan mo tor is defective. 0007
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C.
00AC
Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. 000A
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. 0007
Before opening the bonn et, allow the engine tocool down. 0007
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. Display messages and
warning/indicator lamps 501

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Wait until the engine has cooled down. 0007
Make sure that the air supply tothera diator is not obstructed. 0007
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C.
00D7
Please wait Charging high-
voltage battery *T
he 48 V battery is dischar ged. You ha veswitched on the ignition while the12 V battery was being charge d with a
suitable charge r or while ano ther vehicle was pr oviding starting assis tance.
The discha rged 48 V battery is charge d automatically via thevo ltage con verter. Af ter a few minutes, theMotor can
be started again display message will be shown on the multifunction displa y. 0007
Start the engine. 0007
Drive theve hicle for a while tocharge the12 V battery and the 48 V battery af ter disconnecting thech arger
from theve hicle.
If th eMotor can be started again display message does not appear af ter a few minutes: 0007
Tryto start the engine again. 0007
Ifth e engine does not start, consult a qualified specialist workshop.
003D
48 V battery See Owner's
Manual *T
he 48 V sy stem is malfunctioning. Con venience functions may be restricted. 0007
Consult a qualified specialist workshop immediatel y.502
Display messages and warning/indicator lamps

Instrument display (standard)
Instrument display in
the widescreen cockpit Wa
rning and indicator lamps:
0058 Low beam (0013
page126)
0060 St
anding lights (0013 page126)
0057 High beam (0013
page128)
003E003D Tu
rn signal indicator
(0013 page128)
005E Re
ar fog light (0013 page126)
0075 Re
stra int sy stem (0013 page 531)
00E9 Seat belt not
fastened
(0013 page 536)
004D Brakes (yellow) (0013
page 531)
004D Brakes (red) (0013
page 531)
0024 Elect
ric pa rking brake (yellow)
(0013 page 531)
0024 Electric parking brake (red)
(0013
page 531)
0025 ABS malfunction (0013
page 531)
00E5 ESP®
(0013 page 531)
00BB ESP®
OFF (0013 page 531) L
Distance warning (0013 page 537)
00CC Po
we r-assis tedsteering malfunction
(0013 page542)
00CC AIRMATIC malfunction
(0013 page 537)
00CC DY
NA MIC BODY CONTROL malfunc‐
tion (0013 page 537)
00B9 Engine diagnostics (0013
page 538)
0028 Preglow
003D Electrical
fault( 0013 page 538)
00B6 Fu
elreser vewith fuel filler flap loca‐
tion indicator (0013 page 538)
00AC Coolant
too hot/cold
(0013 page 538)
0077 Ty
re pressure monitor
(0013 page540)
00CA Tr
ailer hit chis not operational or is
swivelling(0013 page542) 530
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
00AC Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. 000A
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. 0007
Before opening the bonn et, allow the engine tocool down. 0007
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. Do not con‐
tinue driving under any circums tances. 0007
Obser vethe messages on the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: 0007
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 539

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
or 0007
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. 0007
Check the coolant le vel (0013 page 399). 0007
Make sure that the air supply tothera diator is not obstructed. 0007
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C. Ty
res Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
0077 Ty re pressure monitoring
sy stem warning lamp lights
up The
yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring sy stem has de tected tyre pressure loss in at least one of the tyres. 000A
WARNING Risk of an accident due toinsuf ficient tyre pressure
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering and braking may be greatly impaired. 540
Displaymessa ges and warning/indicator lamps

Importing (o
verview) ............................ 341
Information .......................................... 340
Making a call ...................................... .342
Na me form at ...................................... .341
Options ................................................ 342
St oring ................................................ 342
Controller Operating ............................................ 285
Con venience closing ................................. 87
Con venience opening ................................ 86
Coolant (engine) Check le vel .......................................... 399
No tes .................................................. 469
Cooling see Climate control
Co pyright .................................................... 31
Cornering light ........................................ .130
Cross Traf fic Alert .................................. .237
Crosswind Assist Function/no tes ................................... 19 3
Cruise control .......................................... 200
Ac tivating ............................................ 202 Buttons ................................................ 202
Calling up a speed ............................... 202
Deactivating ........................................ 202
Fu nction .............................................. 200
Re quirements ...................................... 202
Selecting ............................................ .202
Setting a speed ................................... 202
St oring a speed ................................... 202
Sy stem limitations ...............................2 00
Cup holder Rear ben chseat ................................... 121
Cup holder in the centre console
In stalling/removing ............................ .120
ins talling/ removing (auto matic
transmission) ....................................... 11 9 D
Damage de tection (pa rked vehicle) .......187
Dashboa rd
see Cockpit
Dashboard lighting see Instrument lighting
Data acquisition Vehicle .................................................. 29 Data import/export
................................ 298
Fu nction/no tes ................................... 298
Importing/exporting ........................... 299
Data storage
Electronic control units ........................ .29
Online services ...................................... 30
Ve hicle .................................................. 29
Date Setting the time and date automati‐
cally ..................................................... 293
Deactivating the alarm (A TA).................... 94
Deale rship
see Qualified speciali stwo rkshop
Declaration of conformity Electromagnetic compatibility ............... 25
Jack .......................................................25
TIREFIT kit ............................................. 26
Wi reless vehicle components ................25
Decorative foil (cleaning instructions)
.................................................................. .404
DeNO x agent
see AdBlue ® 552
Index

Au
xilia rybattery malfunction .............. 509
0044Before starting the engine, turn
th esteering wheel. ...............................5 11
Blind Spot Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 489
Blind Spot Assist inope rative ............... 490
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 93
Brake immediate ly............................... 475
Cann otstart engine See Owner's
Manual ................................................ 501
00AFChan gekey bat teries ...................5 18
004D Check brake fluid le vel................ 480
Check brake pads See Owner's Man‐
ual ...................................................... .488
00B2Che ckeng. oil le v.when next
re fuelling ............................................. 505
00CAChe cktrailer hitch lo ck(white
display message) .................................5 20Che
cktyre pressu resth en restart
Ru n Flat Indicator ................................. 516
0077 Check tyre(s) .............................. .514
003A Clean the fuel filter .................... .499
Clutch overheated Avoid pulling away
fo r XX:XX mins ..................................... 51 0
00AC Coolant Stop vehicle Switch
engine off ............................................ 501
Cruise contro l and Limiter inope ra‐
tive ...................................................... 496
Cruise control inope rative ................... 496
Cruise control off ................................ 496
0025cu rrently unavailable See Own‐
er's Manual .......................................... 481
00E5cur rently una vailable See Own‐
er's Manual .......................................... 475
Dep ress clutch fully tostart engine .....5 10
00B3 Engine oil le vel cannot be
measured ............................................ 503
00B2Engine oil le velRe duce oil le vel...5 03 00B2Engine oil le
velSt op vehicle
Switch engine off ................................ 504
00B2Engine oil pressure Stop Switch
off engine ............................................ 504
Fa ult Drive at max. 80 km/h ...............493
0075Fr ont left malfunction Consult
wo rkshop (Example) ............................4 86
006FFr ont left seat backrest not
loc ked (Example) .................................5 22
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 85
Fr ont-passenger airbag enabled See
Owner's Manual ..................................4 84
003B inope rative Battery low ............... 525
003Binoperati veRefuel vehicle ........... 525
003Binoperative See Owner's Man. ....525
0025inoperative See Owner's Man‐
ual ....................................................... 482
00E5inoperative See Owner's Man‐
ual ....................................................... 483 Index
555

Risk of
vehicle rolling Driver door
open and transmission not in P ............511
Ru n Flat Indicator inope rative .............. 517
003D See Owner's Manual ................... 498
Speed limit (winter tyres) XXX km/h ... 497
00CCSt eering malfunction Incre ased
ph ysical ef fort See Owner's Manual .... 523
00CCSt eering malfunction See Own‐
er's Manual .......................................... 511
00CC Steering malfunction Stop
immediately See Owner's Manual .......522
St op vehicle Lea veengine running
Wa itTransmission cooling ...................508
003DSt opvehicle Lea veengine run‐
ning ..................................................... 499
003DSt opvehicle See Owner's Man‐
ual .......................................................5 00
00CCSt opvehicle Vehicle too low ........ 493
çsuspended ..................................4 95
0049Switch off lights .......................... 526 0049Switch on headla
mps.................. 526
To shift out of P or N,depress brake
and start engine .................................. 509
00C8To p upAdBlue Perf.re duced in
XXX miles See Owner's Manual ...........508
00C8 Top up AdBlue Perf.re duced:
XXX km/h Nostart in XXX km .............507
To p up coolant See Owner ’sManual ... 499
00B2To p upwasher fluid .................... .524
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 492
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 491
Tr af fic Sign Assi stinope rative ............. 491
00CATr ailer coupling extending… .........519
Tr ansmission Malfunction Stop ........... 508
0024Tu rnon the ignition torelease
th e parking brake ................................. 476
0077 Tyre press. monitor cur rently
una vailable .......................................... .515 0077
Tyre press. monitor inoperative
No wheel sensors ................................ 51 5
0077 Tyre press. monitor inoperative ...515
Ty re pressure Check tyres ....................512
Ty re(s) ove rheated ...............................5 16
00CC Vehicle rising Please wait............ 489
00CCVe hiclerising ...............................4 92
0077Wa rning tyre defect .....................513
0077 Wheel sensor(s) missing ..............51 5
Wi thout changing gear, consult work‐
shop ....................................................5 09
Display on the windscreen
see Head-up display
Distance control see Active Dis tance Assi stDISTRONIC
Di stance recorder
see Trip dis tance
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door lock .............................. 75 Index
557